Dr. Johannes E. Fröch Profile

Dr. Johannes E. Fröch

at Univ of Washington

SPIE Involvement:

Author

Publications (4)

Proceedings Article | 4 October 2023 Presentation

Non-volatile phase-only transmissive spatial light modulator

Zhuoran Fang, Rui Chen, Johannes Froech, Quentin Tanguy, Asir Khan, Xiangjin Wu, Arnab Manna, Matthew Reynolds, Eric Pop, Arka Majumdar

Proceedings Volume PC12647, PC126470X (2023) https://doi.org/10.1117/12.2675093

KEYWORDS: Phase shift keying, Modulation, Spatial light modulators, Microelectromechanical systems, Liquid crystals, Wavefronts, Virtual reality, Switching, Phase modulation, Optical communications

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Proceedings Article | 17 March 2023 Presentation

Cryo-compatible strain tuning of nanophotonic structures coupled to Van der Waals materials

Arnab Manna, Johannes Froech, Arka Majumdar

Proceedings Volume PC12423, (2023) https://doi.org/10.1117/12.2649257

KEYWORDS: Nanophotonics, Transition metals, Tolerancing, Light-matter interactions, Heterojunctions, Cryogenics, Control systems

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Proceedings Article | 17 March 2023 Presentation

Phase imaging Endoscopy using metalens chromatic aberration.

Aamod Shanker, Arka Majumdar, Johannes Froech

Proceedings Volume PC12356, PC123560C (2023) https://doi.org/10.1117/12.2650842

KEYWORDS: Chromatic aberrations, Endoscopy, Phase imaging, Tissues, RGB color model, Natural surfaces, Endoscopes, Absorption, 3D image processing, Wavefront distortions

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SPIE Journal Paper | 9 March 2023 Open Access

Large field-of-view short-wave infrared metalens for scanning fiber endoscopy

Ningzhi Xie, Matthew Carson, Johannes Fröch, Arka Majumdar, Eric Seibel, Karl Böhringer

JBO, Vol. 28, Issue 09, 094802, (March 2023) https://doi.org/10.1117/12.10.1117/1.JBO.28.9.094802

KEYWORDS: Short wave infrared radiation, Infrared radiation, Microscopes, Infrared imaging, Endoscopy, Design and modelling, Light sources and illumination, Endoscopes, Zemax, Point spread functions

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